Realistic Tolerances for Double-Tee Construction

by Richard L. Tucker, (F.ASCE), Prof.; Dept. of Civ. Engrg., The Univ. of Texas, Austin, Tex.,
Luh-Maah Chang, Grad. Student; Dept. of Civ. Engrg., The Univ. of Texas, Austin, Tex.,
Ned H. Burns, (M.ASCE), Prof.; Dept. of Architectural Engrg., The Univ. of Texas, Austin, Tex.,

Serial Information: Journal of the Construction Division, 1982, Vol. 108, Issue 4, Pg. 563-576

Document Type: Journal Paper


This paper is mainly concerned with the problems of tolerance specification for precast concrete construction. Some articles have reported that constructed tolerances are much larger than those commonly specified and that tolerances recommended in published standards were unrealistic. In order to confirm the aforementioned statements, an investigation was made by directly measuring the existing variation of bearing lengths in the connections of the beams and their supports at five precast parking structures in Austin, Texas. The results of the investigation illustrate the problem of tolerance specification. A realistic tolerance standard should be established. More effort should be dedicated to measuring the variations in existing satisfactory structures to obtain more realistic data for establishing tolerance standards.

Subject Headings: Construction management | Precast concrete | Existing buildings | Concrete construction | Connections (structural) | Beams | Parking facilities | Concrete structures | Texas | United States

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